A server administrator needs to administer a server remotely using RDP, but the specified port is closed on the outbound firewall on the network. The access the server using RDP on a port other than…

Remote Desktop Protocol (RDP) sessions inherently utilize Transport Layer Security (TLS) for encryption and authentication, establishing a secure communication channel. This foundational security mechanism remains integral to RDP's operation and protection, irrespective of whether the service is configured to listen on its default port or a non-standard port to bypass network restrictions.

Multiprotocol Label Switching (MPLS) is a network routing technique used for high-performance data forwarding and is unrelated to RDP port configuration or security protocols.

Secure Copy Protocol (SCP) is used exclusively for secure file transfers and does not provide remote desktop access capabilities or methods to change RDP's listening port.

Secure Shell (SSH) provides secure remote access and can be used to tunnel RDP traffic over a different port, but it is not the underlying security protocol that RDP natively uses for encryption and authentication of the remote desktop session itself.